TWM608215U - Test jig - Google Patents

Abstract

The application discloses a test fixture, which includes a connection base, a fixed seat for a test piece, a first bearing component, a first signal transmission component, a second bearing component, and a second signal transmission component. The connection base has a first connection The end portion and the second connecting end portion; the device under test fixing seat is arranged between the first connecting end portion and the second connecting end portion, the device under test fixing seat is arranged to fix the circuit board under test; the first bearing assembly is arranged on the first connecting end portion One side of the connecting end; the first signal transmission component is arranged on one side of the first carrying component; the second carrying component is arranged on one side of the second connecting end; the second signal transmission component is arranged on the side of the second carrying component On one side, the first signal transmission component and the second signal transmission component are respectively electrically connected with the circuit board to be tested.

Description

Test Fixture

This application relates to the technical field of wafer testing, and in particular to a test fixture.

At present, component testing usually connects multiple cables to a circuit board with components (such as chips). Signals are input to the components through these cables. The components generate corresponding output signals according to the input signals, and the output signals pass through the cables. These cables are transmitted to external devices. If there is no output signal transmitted to the external device or the output signal is abnormal, it means that the chip is defective. However, in the process of component testing, the cables hang on one side of the circuit board with the components, so the weight and stress of the cables cause the cables to be easily separated from the circuit board, and even cause the circuit board and the circuit board. Damage to components.

The embodiment of the application provides a test fixture to solve the problem that the cable connected to the circuit board with the components hangs on one side of the circuit board when the component is tested, and the weight and stress of the cable may easily cause the circuit board and the components. The problem of device damage.

In order to solve the above technical problems, this application is implemented as follows:

A test fixture is provided, which includes: a connection base having a first connection end and a second connection end; Between the connecting end and the second connecting end, the device under test fixing seat is arranged to fix the circuit board under test; the first bearing component is arranged on one side of the first connecting end, and the first bearing component is fixed on the device under test The first signal transmission component is arranged on one side of the first carrying component, and the first signal transmission component is electrically connected to the circuit board; the second carrying component is arranged on one side of the second connecting end, and the second carrying component is arranged on one side of the second connecting end. The carrier component is located on the other side of the DUT fixing seat and is opposite to the first carrier component; and the second signal transmission component is arranged on one side of the second carrier component, and the second signal transmission component is opposite to the first signal transmission component, The second signal transmission component is electrically connected with the circuit board to be tested.

In the embodiment of the present application, the test fixture can prevent the cable from being directly connected to the circuit board to be tested, avoiding the cable hanging on one side of the circuit board to be tested, so that the cable can be firmly electrically connected to the circuit board under test. The circuit board to be tested is not damaged by the weight and stress of the cable.

The technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of them. Based on the embodiments in this application, all other embodiments obtained by a person of ordinary skill in the art without creative work shall fall within the protection scope of this application.

Please refer to Figures 1, 2 and 3, which are a perspective view and an exploded view of the test fixture of the first embodiment of the present application; as shown in the figure, the test fixture 1 of this embodiment includes a connection base 10 and a test piece The fixing seat 11, the first carrying component 12, the first signal transmission component 13, the second carrying component 14, and the second signal transmission component 15. The DUT fixing seat 11 is arranged on one side of the connection base 10, and the connection base 10 It has a first connection end 101 and a second connection end 102, and the DUT holder 11 is located between the first connection end 101 and the second connection end 102. The first bearing component 12 is connected to the first connecting end 101, and the first bearing component 12 is located on one side of the fixing seat 11 of the DUT. The first signal transmission component 13 is disposed on one side of the first supporting component 12 and on one side of the fixing seat 11 of the DUT. The second bearing component 14 is connected to the second connecting end 102, the second bearing component 14 is located on the other side of the DUT fixing seat 11, and the second bearing component 14 is opposite to the first bearing component 12. The second signal transmission component 15 is disposed on one side of the second carrier component 14 and on the other side of the DUT holder 11, and the second signal transmission component 15 is opposite to the first signal transmission component 13.

When the test fixture 1 of this embodiment is in use, the circuit board 2 to be tested with the chip 21 to be tested is placed on the mounting base 11 of the device to be tested. The first signal transmission component 13 and the second signal transmission component 15 are respectively The circuit board under test 2 is electrically connected, the first signal transmission component 13 inputs signals to the circuit board under test 2, the chip under test 21 generates an output signal according to the signal input by the first signal transmission component 13, and the output generated by the chip under test 21 The signal is transmitted from the second signal transmission component 15 to the external device. Through the test fixture 1 of this embodiment, the cable can be prevented from being directly connected to the circuit board 2 under test of the chip under test 21, and the cable can be prevented from hanging on the side of the circuit board 2 under test with the chip under test 21, so that the cable It can be firmly electrically connected to the circuit board 2 to be tested with the chip 21 to be tested, so that the circuit board 2 to be tested with the chip 21 to be tested is not damaged by the weight and stress of the cable. This embodiment is only an implementation aspect of the present application, and the test chip 21 on the test circuit board 2 can also be replaced with other components, which should not be limited thereto.

The first signal transmission component 13 of this embodiment includes a first fixing base 131 and a first test circuit board 132. The first fixing base 131 is disposed on one side of the first carrier element 12 and extends along the vertical direction Z. The first test circuit The plate 132 is disposed on the surface of the first fixing base 131 perpendicular to the first horizontal direction Y, wherein the vertical direction Z and the first horizontal direction Y are perpendicular to each other. The first test circuit board 132 has a plurality of first cable connectors 1321 and a first test connector 1322. The first test connector 1322 is located on the side of the first test circuit board 132 close to the mounting base 11 of the DUT. The first test The connector 1322 is electrically connected to the first cable connectors 1321. Specifically, the first test connector 1322 has a plurality of connection lines, and the first test connector 1322 is connected to the first cables through the connection lines. The connector 1321 is electrically connected.

The structure of the second signal transmission component 15 is the same as that of the first signal transmission component 13. The second signal transmission component 15 includes a second fixing base 151 and a second test circuit board 152. The second fixing base 151 is disposed on the second carrier assembly 14 and extending along the vertical direction Z, the second test circuit board 152 is arranged on the surface of the second fixing base 151 perpendicular to the first horizontal direction Y, the second test circuit board 152 and the first test circuit board 132 are located on the same on flat surface. The second test circuit board 152 has a plurality of second cable connectors 1521 and a second test connector 1522. The second test connector 1522 is located on the side of the second test circuit board 152 close to the mounting base 11 of the DUT. The second test The connector 1522 is electrically connected to the second cable connectors 1521. Specifically, the second test connector 1522 has a plurality of connection lines, and the second test connector 1522 is connected to the second cables through the connection lines. The connector 1521 is electrically connected.

When the test fixture 1 of the present embodiment is in use, the circuit board 2 to be tested is arranged on the surface of the mounting base 11 of the device to be tested perpendicular to the first horizontal direction Y and is located on the first test circuit board 132 and the second test circuit board Between 152, that is, the circuit board to be tested 2, the first test circuit board 132, and the second test circuit board 152 are located on the same plane. The circuit board under test 2 has two connectors 22, the two connectors 22 are respectively located on two opposite sides of the circuit board under test 2, the first test connector 1322 of the first test circuit board 132 and the second test connector 1322 of the second test circuit board 152. The test connector 1522 is respectively connected to the two connectors 22, so that the first signal transmission component 13 and the second signal transmission component 15 are respectively electrically connected to the circuit board 2 under test, the first signal transmission component 13 and the second signal transmission component 15 Signal transmission is performed with the circuit board 2 to be tested to test the chip 21 to be tested.

In addition, the first cable connectors 1321 of the first test circuit board 132 and the second cable connectors 1521 of the second test circuit board 152 are respectively connected to external devices through wires. In this embodiment, the first cable connectors 1321 of the first test circuit board 132 and the second cable connectors 1521 of the second test circuit board 152 are on the first test circuit board 132 and the second test circuit, respectively. The plate 152 is arranged in a circular arc, of course, other arrangements can also be made, which will not be repeated here. The first fixing base 131 of this embodiment also has a first hollow portion 1311, and the first test circuit board 132 is exposed from the first hollow portion 1311, so that the first cable connectors 1321 can be disposed on the first test circuit board 132 In the first horizontal direction Y and on two opposite surfaces; similarly, the second fixing seat 151 also has a second hollow portion 1511, and the second test circuit board 152 is exposed from the second hollow portion 1511, so that the second lines The cable connector 1521 may be located on two opposite surfaces of the second test circuit board 152 in the first horizontal direction Y. The first test circuit board 132 of this embodiment further has a first test substrate 1323, the first cable connectors 1321 are disposed on the first test substrate 1323, and the first cable connector 1321 has a first connector body 1321a And the first fixing portion 1321b, the first fixing portion 1321b is disposed on the periphery of the first connector body 1321a, the first fixing portion 1321b protrudes from the first connector body 1321a, and the first fixing portion 1321b of each first cable connector 1321 The fixing portion 1321 b is fixed on the first test substrate 1323, so that the first cable connector 1321 can be firmly located on the first test circuit board 132. Similarly, the second test circuit board 152 also has a second test substrate 1523, the second cable connectors 1521 are disposed on the second test substrate 1523, and the second cable connector 1521 has a second connector body 1521a and The second fixing portion 1521b, the second fixing portion 1521b are provided on the periphery of the second connector body 1521a, the second fixing portion 1521b protrudes from the second connector body 1521a, and the second fixing of each second cable connector 1521 The portion 1521b is fixed on the second test substrate 1523, so that the second cable connector 1521 can be firmly located on the second test circuit board 152. In this embodiment, the first signal transmission component 13 serves as a signal input terminal, and the second signal transmission component 15 serves as a signal output terminal. Of course, the first signal transmission component 13 can also serve as a signal output terminal, and the second signal transmission component 15 serves as a signal input terminal. .

In order to enable the first test connector 1322 of the first test circuit board 132 and the second test connector 1522 of the second test circuit board 152 to be accurately inserted into the two connectors 22, the mounting bases 11, The first carrier component 12 and the second carrier component 14 are adjustable. The two connectors 22 of the circuit board 2 to be tested, the first test connector 1322 of the first test circuit board 132, and the second test connector 1322 of the second test circuit board 152 are adjustable. The test connector 1522 can be driven by the DUT holder 11, the first carrier component 12, and the second carrier component 14 to fine-tune its position, so that the first test connector 1322 and the second test connector 1322 of the first test circuit board 132 can be tested. The second test connectors 1522 of the circuit board 152 are respectively aligned with the two connectors 22 and inserted precisely.

The first carrier component 12 drives the first signal transmission component 13 to move along the first horizontal direction Y and the second horizontal direction X, and the second carrier component 14 drives the second signal transmission component 15 along the first horizontal direction Y or the second horizontal direction X Move, the DUT holder 11 drives the circuit board 2 to be tested to move in the second horizontal direction X or the first horizontal direction Y. In other words, the first carrier component 12 drives the first signal transmission component 13 to move in two directions , The second carrier component 14 can only drive the second signal transmission component 15 to move in one direction, and the DUT fixing seat 11 also only drives the circuit board 2 to be tested to move in one direction. For example, the first carrier component 12 drives the second signal transmission component 15 to move in one direction. A signal transmission component 13 moves along the first horizontal direction Y and the second horizontal direction X, the second carrier component 14 drives the second signal transmission component 15 to move along the second horizontal direction X, and the DUT holder 11 drives the circuit board under test 2 Move along the first horizontal direction Y. In this embodiment, the first carrier component 12 can drive the first signal transmission component 13 to move along the first horizontal direction Y and the second horizontal direction X, and the second carrier component 14 can drive the second signal transmission component 15 along the second horizontal direction. Moving in the direction X, the fixed seat 11 of the test piece drives the circuit board 2 to be tested to move along the first horizontal direction Y. The vertical direction Z, the first horizontal direction Y and the second horizontal direction X are perpendicular to each other.

The structure of the DUT fixing seat 11, the first bearing assembly 12 and the second bearing assembly 14 will be described in detail below. The first bearing assembly 12 includes a first connecting seat 121 and a first bearing seat 122. The first connecting seat 121 is movably arranged On one side of the first connecting end 101, the first bearing base 122 is movably disposed on the surface of the first connecting base 121 away from the first connecting end 101. The first connecting seat 121 has a first sliding portion 1211 and a second sliding portion 1212 on two opposite surfaces in the vertical direction Z, respectively. The first sliding portion 1211 extends along the first horizontal direction Y, and the second sliding portion 1212 extends along the second Extend in the horizontal direction X. When the first connecting seat 121 is assembled to the first connecting end 101, the first connecting end 101 has a third sliding part 1011, and the third sliding part 1011 extends along the first horizontal direction Y. The sliding part 1211 is movably connected with the third sliding part 1011. The surface of the first bearing seat 122 close to the first connecting seat 121 has a fourth sliding portion 1221, the fourth sliding portion 1221 extends along the second horizontal direction X, and the first signal transmission component 13 is disposed on the first bearing seat 122 away from the first connecting seat. Seat 121 on the surface. When the first supporting base 122 is assembled on the first connecting base 121, the fourth sliding portion 1221 of the first supporting base 122 and the second sliding portion 1212 are movably connected. In this embodiment, the first connecting seat 121 of the first bearing assembly 12 moves relative to the first connecting end 101 along the first horizontal direction Y. The first connecting seat 121 drives the first signal transmission assembly 13 along the first bearing seat 122 through the first bearing seat 122. When moving in the first horizontal direction Y, the first supporting base 122 moves relative to the first connecting base 121 in the second horizontal direction X, and the first supporting base 122 drives the first signal transmission assembly 13 to move in the second horizontal direction X. In this embodiment, the first sliding portion 1211 is a bump, the third sliding portion 1011 is a groove, the second sliding portion 1212 is a groove, and the fourth sliding portion 1221 is a bump. Of course, the second sliding portion 1212 and the third sliding portion 1011 can also be changed to bumps, and the first sliding portion 1211 and the fourth sliding portion 1221 can be changed to grooves.

The second bearing assembly 14 includes a second bearing seat 142, and the second bearing seat 142 is movably disposed at the second connecting end 102. The surface of the second connecting end portion 102 has a fifth sliding portion 1021, and the fifth sliding portion 1021 extends along the second horizontal direction X. The surface of the second bearing seat 142 close to the second connecting end 102 has a sixth sliding portion 1421, the sixth sliding portion 1421 extends along the second horizontal direction X, and the second signal transmission component 15 is disposed on the second bearing seat 142 away from the second Connect the end 102 on the surface. When the second supporting base 142 is assembled on the second connecting end 102, the sixth sliding portion 1421 of the second supporting base 142 and the fifth sliding portion 1021 are movably connected. The second bearing base 142 of the second bearing assembly 14 of this embodiment moves relative to the second connecting end 102 along the second horizontal direction X, and the second bearing base 142 drives the second signal transmission assembly 15 to move along the second horizontal direction X . In this embodiment, the fifth sliding portion 1021 is a groove, and the sixth sliding portion 1421 is a bump. Of course, the fifth sliding portion 1021 can also be changed to a bump, and the sixth sliding portion 1421 can be changed to a groove.

The connection base 10 located between the first connection end 101 and the second connection end 102 has a first connection sliding portion 103, and the first connection sliding portion 103 extends along the first horizontal direction Y. The surface of the DUT holder 11 close to the connecting base 10 has a second connecting sliding portion 111, the second connecting sliding portion 111 extends along the first horizontal direction Y, and the second connecting sliding portion 111 is movably connected to the first connecting sliding portion 103 , The DUT fixing base 11 can move relative to the connection base 10 along the first horizontal direction Y, and the DUT fixing base 11 can drive the circuit board 2 to be tested to move along the first horizontal direction Y. In this embodiment, the first connecting sliding portion 103 is a groove, and the second connecting sliding portion 111 is a bump. Of course, the first connecting sliding portion 103 can also be changed to a bump, and the second connecting sliding portion 111 can be changed to a groove.

The first supporting base 122 of this embodiment has a first fixed through slot 1222, and the first fixed through slot 1222 extends along the second horizontal direction X and is located on one side of the first signal transmission component 13. The first bearing assembly 12 further includes a first limiting member 123, and the first limiting member 123 passes through the first fixing through slot 1222 and is movably connected to the first connecting seat 121. The first limiting member 123 has a first limiting body 1231 and a first limiting protrusion 1232. The first limiting body 1231 passes through the first fixing through slot 1222 and is movably connected to the first connecting seat 121. The convex portion 1232 is disposed at an end of the first limiting body 1231 away from the first connecting seat 121, the first limiting convex portion 1232 is located on the side of the first bearing seat 122 away from the first connecting seat 121, and the first limiting body 1231 is located at The width in the second horizontal direction X is smaller than the width of the first fixed through slot 1222 in the second horizontal direction X, so that the first supporting base 122 can move relative to the first connecting base 121 along the second horizontal direction X. The width of the first limiting protrusion 1232 in the first horizontal direction Y is greater than the width of the first fixing through groove 1222 in the first horizontal direction Y. Before the first supporting component 12 completes the movement in the second horizontal direction X, there is a distance between the first limiting protrusion 1232 and the first supporting base 122 so that the first supporting base 122 can move along the second horizontal direction X. After the first bearing assembly 12 completes the movement in the second horizontal direction X, the first limiting protrusion 1232 abuts on the surface of the first bearing seat 122 away from the first connecting seat 121 to fix the first bearing seat 122 at On the first connecting seat 121. The first connecting seat 121 of this embodiment also has a perforation (not shown in the figure) corresponding to the first limiting body 1231 of the first limiting member 123, so that the first limiting member 123 can move along the perforation to move closer or farther away The first bearing seat 122. In this embodiment, the number of the first fixing slot 1222 and the first limiting member 123 are both two, and the two first fixing slots 1222 and the two first limiting members 123 are respectively located in the first signal transmission assembly 13 in the first On the two opposite sides in the horizontal direction Y, the first supporting base 122 can be more firmly fixed on the first connecting base 121 in this way.

The first connecting base 121 of this embodiment has a second fixed through slot 1213, and the second fixed through slot 1213 extends along the first horizontal direction Y and is located on one side of the first signal transmission component 13. The first bearing assembly 12 further includes a second limiting member 124, and the second limiting member 124 passes through the second fixing through slot 1213 and is movably connected to the first connecting end 101. The second limiting member 124 has a second limiting body 1241 and a second limiting protrusion 1242. The second limiting body 1241 passes through the second fixing through slot 1213 and is movably connected to the first connecting end 101. The second limiting body 1241 is movably connected to the first connecting end 101. The positioning protrusion 1242 is connected to the end of the second limiting body 1241 away from the first connecting end 101, the second limiting protrusion 1242 is located on the side of the first connecting seat 121 away from the first connecting end 101, and the second limiting body 1241 The width of the position body 1241 in the first horizontal direction Y is smaller than the width of the second fixing through groove 1213 in the first horizontal direction Y, so that the first connecting seat 121 can be moved along the first horizontal direction Y with respect to the first connecting end 101 mobile. The width of the second limiting protrusion 1242 in the second horizontal direction X is greater than the width of the second fixing through groove 1213 in the second horizontal direction X. Before the first bearing assembly 12 completes the movement in the first horizontal direction Y, there is a distance between the second limiting protrusion 1242 and the first connecting seat 121 so that the first bearing seat 122 can move along the first horizontal direction Y. After the first bearing assembly 12 completes the movement in the first horizontal direction Y, the second limiting protrusion 1242 abuts on the surface of the first connecting seat 121 away from the first connecting end 101 to fix the first connecting seat 121 On the first connection end 101. The first connecting end 101 of this embodiment also has a perforation (not shown) corresponding to the second limiting body 1241 of the second limiting member 124, so that the second limiting member 124 can move along the perforation to approach or Away from the first connecting seat 121. In this embodiment, the number of the second fixed through slot 1213 and the second limiting member 124 are both two, the two second fixed through slots 1213 and the two second limiting members 124 are respectively located in the first signal transmission assembly 13 in the first On the two opposite sides in the horizontal direction Y, the first connecting seat 121 can be more firmly fixed on the first connecting end 101 in this way.

The second supporting base 142 of this embodiment has a third fixed through slot 1422, and the third fixed through slot 1422 extends along the second horizontal direction X and is located on one side of the second signal transmission component 15. The second bearing assembly 14 further includes a third limiting member 143, and the third limiting member 143 is movably connected to the second connecting seat 141 through the third fixing through slot 1422. The third limiting member 143 has a third limiting body 1431 and a third limiting convex portion 1432. The third limiting body 1431 passes through the third fixing through slot 1422 to be movably connected to the second connecting end 102, and the third limiting body 1431 is movably connected to the second connecting end 102. The positioning protrusion 1432 is disposed at an end of the third limiting body 1431 away from the second connecting end 102. The third limiting protrusion 1432 is located on the side of the second bearing seat 142 away from the second connecting end 102. The third limiting The width of the body 1431 in the second horizontal direction X is smaller than the width of the third fixed through slot 1422 in the second horizontal direction X, so that the second bearing seat 142 can move relative to the second connecting end 102 along the second horizontal direction X . The width of the third limiting protrusion 1432 in the first horizontal direction Y is greater than the width of the third fixing through groove 1422 in the first horizontal direction Y. Before the second bearing assembly 14 completes the movement in the second horizontal direction X, there is a distance between the third limiting protrusion 1432 and the second bearing seat 142 so that the second bearing seat 142 can move in the second horizontal direction X. After the second bearing assembly 14 completes the movement in the second horizontal direction X, the third limiting protrusion 1432 abuts on the surface of the second bearing seat 142 away from the second connecting end 102 to fix the second bearing seat 142 On the second connecting end 102. The second connecting end 102 of this embodiment also has a perforation (not shown in the figure) corresponding to the third limiting body 1431 of the third limiting member 143, so that the third limiting member 143 can move along the perforation to approach or Away from the second bearing seat 142. In this embodiment, the number of the third fixed through slot 1422 and the third limiting member 143 are both two, the two third fixed through slots 1422 and the second third limiting member 143 are respectively located in the second signal transmission assembly 15 in the first On the two opposite sides in the horizontal direction Y, the second supporting base 142 can be more firmly fixed on the second connecting end 102 in this way.

The fixing seat 11 of the device under test in this embodiment has a fixing slot 112, and the fixing slot 112 extends along the first horizontal direction Y and is located on one side of the circuit board 2 under test. The fixing seat 11 of the test piece further includes a limiting member 113, and the limiting member 113 is movably connected to the connection base 10 through the fixing through slot 112. The limiting member 113 has a limiting body 1131 and a limiting protrusion 1132. The limiting body 1131 passes through the fixing through slot 112 to be movably connected to the connecting base 10, and the limiting protrusion 1132 is disposed on the limiting body 1131 away from the connecting base At one end of 10, the limiting protrusion 1132 is located on the side of the DUT fixing seat 11 away from the connecting base 10, and the width of the limiting body 1131 in the first horizontal direction Y is smaller than that of the fixing slot 112 in the first horizontal direction Y The width of, so that the fixed seat 11 of the test piece can move relative to the connection base 10 along the first horizontal direction Y. The width of the limiting protrusion 1132 in the second horizontal direction X is greater than the width of the fixed through slot 112 in the second horizontal direction X. Before the DUT fixing seat 11 completes the movement in the first horizontal direction Y, there is a distance between the limiting protrusion 1132 and the DUT fixing seat 11, so that the DUT fixing seat 11 can move along the first horizontal direction Y . After the DUT fixing seat 11 completes the movement in the first horizontal direction Y, the limiting protrusion 1132 abuts on the surface of the DUT fixing seat 11 away from the connection base 10 to fix the DUT fixing seat 11 in Connect to the base 10. The connecting base 10 of this embodiment also has a perforation (not shown in the figure) corresponding to the limiting body 1131 of the limiting member 113, so that the limiting member 113 can move along the perforation to move closer to or away from the fixed seat 11 of the object under test. In this embodiment, the number of the fixed through slot 112 and the limiting member 113 are both two, and the two fixed through slots 112 and the two limiting members 113 are respectively located on two opposite sides of the fixed seat 11 of the object under test in the first horizontal direction Y In this way, the fixing seat 11 of the DUT can be more firmly fixed on the connection base 10.

Please refer to FIGS. 4 and 5, which are a three-dimensional view and an exploded view of the test fixture of the second embodiment of the present application; as shown in the figure, the test fixture 1 of this embodiment is different from the test fixture of the first embodiment in the first embodiment. The second carrier assembly 14 can drive the second signal transmission assembly 15 to move along the first horizontal direction Y and the second horizontal direction X. The DUT fixing seat 11 does not drive the circuit board 2 to be tested to move, and the first connecting sliding part and the second connecting sliding part are omitted. The connecting sliding part is arranged, so the second bearing assembly 14 of this embodiment further includes a second connecting seat 141, and the second connecting seat 141 is arranged between the second bearing seat 142 and the second connecting end 102. The base 141 can move in the first horizontal direction Y relative to the connection base 10, and the second connection base 141 drives the second signal transmission assembly 15 to move in the first horizontal direction Y through the second bearing base 142. The fifth sliding portion 1021 of the second connecting end portion 102 of this embodiment extends along the first horizontal direction Y, and the surface of the second connecting seat 141 away from the second bearing seat 142 also has a seventh sliding portion 1411, and the seventh sliding portion 1411 extends along the first horizontal direction Y. When the second bearing assembly 14 is assembled to the second connecting end 102, the seventh sliding portion 1411 of the second connecting seat 141 is movably connected to the fifth sliding portion 1021, and the second connecting seat 141 is relative to the second connecting end 102. Move in the first horizontal direction Y. The second connecting seat 141 of this embodiment further has an eighth sliding portion 1412 on the surface close to the second bearing seat 142, and the eighth sliding portion 1412 and the sixth sliding portion 1421 of the second connecting seat 141 are both along the second horizontal direction X extend. When the second bearing seat 142 is assembled to the second connecting seat 141, the eighth sliding portion 1412 of the second connecting seat 141 is movably connected to the sixth sliding portion 1421, and the second bearing seat 142 is along the second connecting seat 141 relative to the second connecting seat 141. X moves in the horizontal direction.

In this embodiment, the third limiting body 1431 of the third limiting member 143 of the second carrier assembly 14 passes through the third fixing through slot 1422 to be movably connected to the second connecting seat 141, and the third limiting protrusion 1432 is disposed on One end of the third limiting body 1431 away from the second connecting seat 141, the third limiting protrusion 1432 is located on the side of the second bearing seat 142 away from the second connecting seat 141, and the third limiting body 1431 is in the second horizontal direction X The width of the upper part is smaller than the width of the third fixed through slot 1422 in the second horizontal direction X, so that the second supporting base 142 can move relative to the second connecting base 141 in the second horizontal direction X. After the second bearing assembly 14 completes the movement in the second horizontal direction X, the third limiting protrusion 1432 abuts on the surface of the second bearing seat 142 away from the second connecting seat 141 to fix the second bearing seat 142 at On the second connecting seat 141. The second connecting seat 141 of this embodiment also has a perforation (not shown in the figure) corresponding to the third limiting body 1431 of the third limiting member 143, so that the third limiting member 143 can move along the perforation to move closer or farther away The second bearing seat 142. In this embodiment, the number of the third fixed through slot 1422 and the third limiting member 143 are both two, the two third fixed through slots 1422 and the second third limiting member 143 are respectively located in the second signal transmission assembly 15 in the first On the two opposite sides in the horizontal direction Y, the second supporting base 142 can be more firmly fixed on the second connecting base 141 in this way.

The second connecting seat 141 of the present embodiment has a fourth fixed through slot 1413, and the fourth fixed through slot 1413 extends along the first horizontal direction Y and is located on one side of the second signal transmission component 15. The second bearing assembly 14 further includes a fourth limiting member 144, and the fourth limiting member 144 is movably connected to the second connecting end 102 through the fourth fixing through slot 1413. The fourth limiting member 144 has a fourth limiting body 1441 and a fourth limiting convex portion 1442. The fourth limiting convex portion 1442 is disposed at one end of the fourth limiting body 1441, and the fourth limiting body 1441 passes through the fourth limiting body 1441. The through slot 1413 is fixed to be movably connected to the second connecting end 102, the fourth limiting protrusion 1442 is disposed at an end of the fourth limiting body 1441 away from the second connecting end 102, and the fourth limiting protrusion 1442 is located at the second On the side of the connecting seat 121 away from the second connecting end 102, the width of the fourth limiting body 1441 in the first horizontal direction Y is smaller than the width of the fourth fixing through groove 1413 in the first horizontal direction Y, so that the first connection The seat 121 can move in the first horizontal direction Y relative to the second connecting end 102. The width of the fourth limiting protrusion 1442 in the second horizontal direction X is greater than the width of the fourth fixing through groove 1413 in the second horizontal direction X. Before the second bearing assembly 14 completes the movement in the first horizontal direction Y, there is a distance between the fourth limiting protrusion 1442 and the second bearing seat 142, so that the second bearing seat 142 can move in the first horizontal direction Y . After the first bearing assembly 12 completes the movement in the first horizontal direction Y, the fourth limiting protrusion 1442 abuts on the surface of the second connecting seat 141 away from the second connecting end 102 to fix the second connecting seat 141 On the second connecting end 102. The second connecting end 102 of this embodiment also has a perforation (not shown) corresponding to the fourth limiting body 1441 of the fourth limiting member 144, so that the fourth limiting member 144 can move along the perforation to approach or Away from the second connecting seat 141. In this embodiment, the number of the fourth fixed through slot 1413 and the fourth limiting member 144 are both two, and the two fourth fixed through slots 1413 and the second fourth limiting member 144 are respectively located in the second signal transmission assembly 15 in the first On the two opposite sides in the horizontal direction Y, the second connecting seat 141 can be more firmly fixed on the second connecting end 102 in this way.

In summary, the present application provides a test fixture. Through the test fixture, the cable can be prevented from being directly connected to the circuit board to be tested, and the cable can be prevented from hanging on one side of the circuit board to be tested, so that the cable can be firmly connected to the circuit board. The test circuit board is electrically connected, so that the test circuit board is not damaged by the weight and stress of the cable.

In addition, the first signal transmission component and the second signal transmission component are connected to the two connectors of the circuit board to be tested through the first test connector and the second test connector, respectively, the first carrying component, the second carrying component and the component to be tested The fixing base can respectively drive the first signal transmission component, the second signal transmission component and the circuit board to be tested; or the first carrier component and the second carrier component can respectively drive the first signal transmission component and the second signal transmission component to match the first signal transmission component and the second signal transmission component. The positions of a signal transmission component, a second signal transmission component and the circuit board to be tested or the positions of the first signal transmission component and the second signal transmission component are fine-tuned, the first test connector and the second signal of the first signal transmission component The second test connectors of the transmission assembly are respectively aligned with the two connectors of the circuit board to be tested and inserted precisely.

It should be noted that in this article, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, It also includes other elements not explicitly listed, or elements inherent to the process, method, article, or device. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, article, or device that includes the element.

The embodiments of the application are described above with reference to the accompanying drawings, but the application is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are only illustrative and not restrictive. Those of ordinary skill in the art are Under the enlightenment of this application, without departing from the purpose of this application and the scope of protection of the patent application, many forms can be made, all of which fall within the protection of this application.

1: Test fixture 10: Connect the base 101: The first connecting end 1011: Third sliding part 102: second connecting end 1021: Fifth sliding part 103: First connecting sliding part 11: Fixing seat for DUT 111: Second connecting sliding part 112: fixed slot 113: limit piece 1131: Limit body 1132: Limit protrusion 12: The first bearing component 121: The first connecting seat 1211: The first sliding part 1212: second sliding part 1213: Second fixed slot 122: The first bearing seat 1221: Fourth sliding part 1222: The first fixed slot 123: The first limit piece 1231: The first limit body 1232: The first limit protrusion 124: The second limit piece 1241: The second limit body 1242: The second limit protrusion 13: The first signal transmission component 131: The first fixed seat 1311: The first hollow part 132: The first test circuit board 1321: first cable connector 1321a: The first connector body 1321b: The first fixed part 1322: first test connector 1323: The first test substrate 14: The second carrier component 141: The second connecting seat 1411: seventh sliding part 1412: Eighth sliding part 1413: The fourth fixed slot 142: The second bearing seat 1421: The sixth sliding part 1422: Third fixed slot 143: Third Limiting Piece 1431: The third limit body 1432: The third limit protrusion 144: Fourth Limiting Piece 1441: The fourth limit body 1442: The fourth limiting protrusion 15: The second signal transmission component 151: second fixed seat 1511: The second hollow part 152: The second test circuit board 1521: second cable connector 1521a: The second connector body 1521b: The second fixed part 1522: second test connector 1523: Second test substrate 2: The circuit board to be tested 21: Chip to be tested 22: Connector Y: the first horizontal direction X: second horizontal direction Z: vertical direction

Fig. 1 is a perspective view of the test fixture of the first embodiment of the present application; Figure 2 is another perspective view of the test fixture of the first embodiment of the present application; Figure 3 is an exploded view of the test fixture of the first embodiment of the present application; 4 is a perspective view of the test fixture of the second embodiment of the present application; and Fig. 5 is an exploded view of the test fixture of the second embodiment of the present application.

1: Test fixture

10: Connect the base

11: Fixing seat for DUT

12: The first bearing component

13: The first signal transmission component

132: The first test circuit board

1322: first test connector

14: The second carrier component

15: The second signal transmission component

152: The second test circuit board

1522: second test connector

2: The circuit board to be tested

21: Chip to be tested

22: Connector

Y: the first horizontal direction

X: second horizontal direction

Z: vertical direction

Claims (12)

A test fixture, which includes: A connection base having a first connection end and a second connection end; A DUT fixing seat is arranged on one side of the connecting base, the DUT fixing seat is located between the first connecting end and the second connecting end, and the DUT fixing seat is arranged to fix a Circuit board to be tested; A first bearing assembly arranged on one side of the connection base, and the first bearing assembly is located on one side of the fixing seat of the DUT; A first signal transmission component arranged on one side of the first carrying component, and the first signal transmission component is electrically connected with the circuit board to be tested; A second bearing component, arranged on one side of the connection base, the second bearing component being located on the other side of the DUT fixing seat and opposite to the first bearing component; and A second signal transmission component is arranged on one side of the second carrier component, the second signal transmission component is opposite to the first signal transmission component, and the two signal transmission components are electrically connected to the circuit board under test. The test fixture according to claim 1, wherein the first carrier component drives the first signal transmission component to move along a first horizontal direction and a second horizontal direction, and the first carrier component includes: A first connecting seat is movably arranged on one side of the first connecting end. The first connecting seat has a first sliding part and a second sliding part on two opposite surfaces in a vertical direction. A sliding portion extends along the first horizontal direction, the second sliding portion extends along the second horizontal direction, the first connecting end portion has a third sliding portion extending along the first horizontal direction, the third sliding portion Movably connected with the first sliding part; and A first bearing seat is movably arranged on a surface of the first connecting seat away from the second connecting end, and a surface of the first bearing seat close to the first connecting seat has a fourth bearing seat extending along the second horizontal direction A sliding part, the fourth sliding part is movably connected to the second sliding part, and the first signal transmission component is arranged on a surface of the first bearing seat away from the first connecting seat. The test fixture according to claim 2, wherein the first bearing seat has a first fixed through slot extending along the second horizontal direction, and the first fixed through slot is located on one side of the first signal transmission component , The first bearing assembly further includes a first limiting member, the first limiting member has a first limiting body and a first limiting convex portion, the first limiting body passes through the first fixing through The groove is movably connected to the first connecting seat, the first limiting protrusion is disposed at an end of the first limiting body away from the first connecting seat, and the first limiting protrusion is located on the first bearing seat away from the first connecting seat. On one side of a connecting seat, the width of the first limiting body in the second horizontal direction is smaller than the width of the first fixing through slot in the second horizontal direction, and the first limiting protrusion is on the first The width in the horizontal direction is greater than the width of the first fixed through slot in the first horizontal direction. The test fixture according to claim 2, wherein the first connecting seat has a second fixing slot extending along the first horizontal direction, and the second fixing slot is located on one side of the first signal transmission component , The first bearing assembly further includes a second limiting member, the second limiting member has a second limiting body and a second limiting protrusion, the second limiting body passes through the second fixing through The groove is movably connected to the first connecting end, the second limiting protrusion is disposed at an end of the first limiting body away from the first connecting seat, and the second limiting protrusion is located on the first bearing seat away from the first connecting seat. On one side of the first connecting seat, the width of the second limiting body in the first horizontal direction is smaller than the width of the second fixing through slot in the first horizontal direction, and the second limiting protrusion is on the first horizontal direction. The width in the two horizontal directions is greater than the width of the second fixing slot in the second horizontal direction. The test fixture according to claim 1, wherein the second carrier component drives the second signal transmission component to move in a second horizontal direction, and the second carrier component includes: A second bearing seat is movably arranged on one side of the second connecting end portion, the second connecting end portion has a fifth sliding portion extending along the second horizontal direction, and the second bearing seat is close to the second connection The surface of the seat has a sixth sliding portion extending along the second horizontal direction, the sixth sliding portion is movably connected to the fifth sliding portion, and the second signal transmission component is disposed on the second bearing seat away from the second connection On the surface of the end. The test fixture according to claim 5, wherein the second bearing base has a third fixing slot extending along the second horizontal direction, and the third fixing slot is located on one side of the second signal transmission component , The second bearing assembly further includes a third limiting member, the third limiting member has a third limiting body and a third limiting protrusion, the third limiting body passes through the third fixing through The groove is movably connected to the second connecting end, the third limiting protrusion is disposed at an end of the third limiting body away from the second connecting end, and the third limiting protrusion is located far away from the second bearing seat. On one side of the second connecting end, the width of the third limiting body in the second horizontal direction is smaller than the width of the third fixing slot in the second horizontal direction, and the third limiting protrusion is The width in the first horizontal direction is greater than the width of the third fixing slot in the first horizontal direction. The test fixture according to claim 5, wherein the device under test fixing seat drives the circuit board to be tested to move in a first horizontal direction, and the device under test fixing seat is movably arranged on one side of the connection base, The connecting base has a first connecting sliding portion extending along the first horizontal direction, the surface of the DUT near the connecting base has a second connecting sliding portion extending along the first horizontal direction, the The second connecting sliding part is movably connected with the first connecting sliding part. The test fixture according to claim 7, wherein the fixing seat of the test piece has a fixing slot extending along the first horizontal direction, the fixing slot is located on one side of the circuit board to be tested, and the second The bearing assembly also includes a limiting member, the limiting member has a limiting body and a limiting protrusion, the limiting body passes through the fixing slot to be movably connected to the connecting base, and the limiting protrusion is provided At the end of the limiting body away from the connection base, the limiting protrusion is located on the side of the DUT fixing seat away from the connecting base, and the width of the limiting body in the first horizontal direction is smaller than that of the fixing The width of the through groove in the first horizontal direction, and the width of the limiting protrusion in the second horizontal direction is greater than the width of the fixed through groove in the second horizontal direction. The test fixture according to claim 1, wherein the second carrier component drives the second signal transmission component to move along a first horizontal direction and a second horizontal direction, and the second carrier component includes: A second connecting seat is movably arranged on one side of the second connecting end, the second connecting end has a fifth sliding portion extending along the first horizontal direction, and the second connecting seat is in a vertical direction And two opposite surfaces respectively have a seventh sliding portion and an eighth sliding portion, the seventh sliding portion extends along the first horizontal direction, the eighth sliding portion extends along the second horizontal direction, and the seventh sliding portion Movably connected with the fifth sliding part; and A second bearing seat is movably disposed on the surface of the second connecting seat away from the second connecting end, and the surface of the second bearing seat close to the second connecting seat has a sixth bearing seat extending along the second horizontal direction A sliding part, the sixth sliding part is movably connected to the eighth sliding part, and the second signal transmission component is arranged on a surface of the second bearing seat away from the second connecting seat. The test fixture according to claim 9, wherein the second bearing seat has a third fixed through slot extending along the second horizontal direction, and the third fixed through slot is located on one side of the second signal transmission component , The second bearing assembly further includes a third limiting member, the third limiting member has a third limiting body and a third limiting protrusion, the third limiting body passes through the third fixing through The groove is movably connected to the second connecting seat, the third limiting protrusion is disposed at an end of the third limiting body away from the second connecting seat, and the third limiting protrusion is located on the second bearing seat away from the second connecting seat. On one side of the second connecting seat, the width of the third limiting body in the second horizontal direction is smaller than the width of the third fixing through slot in the second horizontal direction, and the third limiting protrusion is on the first The width in the horizontal direction is greater than the width of the third fixed through slot in the first horizontal direction. The test fixture according to claim 9, wherein the second connecting seat has a fourth fixing slot extending along the first horizontal direction, and the fourth fixing slot is located on one side of the second signal transmission component , The second bearing assembly further includes a fourth limiting member, the fourth limiting member has a fourth limiting body and a fourth limiting convex portion, the fourth limiting body passes through the fourth fixing through The groove is movably connected to the second connecting end, the fourth limiting protrusion is disposed at an end of the fourth limiting body away from the second connecting seat, and the fourth limiting protrusion is located on the second bearing seat away from the second connecting seat. On one side of the second connecting seat, the width of the fourth limiting body in the first horizontal direction is smaller than the width of the fourth fixing through slot in the first horizontal direction, and the fourth limiting protrusion is on the first horizontal direction. The width in the two horizontal directions is greater than the width of the fourth fixing slot in the second horizontal direction. The test fixture according to claim 1, wherein the first signal transmission component includes a first fixing base and a first test circuit board, the first fixing base is disposed on one side of the first carrying element, and the The first test circuit board is arranged on the surface of the first fixing base perpendicular to a first horizontal direction, the first test circuit board has a plurality of first cable connectors and first test connectors; the second signal transmission assembly It includes a second fixing seat and a second test circuit board, the second fixing seat is arranged on one side of the second carrying component, and the second test circuit board is arranged on the second fixing seat perpendicular to the first horizontal direction On the surface of, the second test circuit board has a plurality of second cable connectors and a second test connector, and the first cable connectors and the second cable connectors are arranged to be electrically connected to external devices , The first test circuit board, the second test circuit board, and the circuit board to be tested are located on the same plane, and the first test connector and the second test connector are arranged to be connected to the second circuit board to be tested, respectively器电连接。 Electrical connection.

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